May weather forecast
Borupana, Sri Lanka

The last month of the spring, May, is another hot month in Borupana, Sri Lanka, with an average temperature ranging between min 26.4°C (79.5°F) and max 30.3°C (86.5°F).

Temperature

In May, the average high-temperature registers at a still tropical 30.3°C (86.5°F), nearly identical to April's 31.4°C (88.5°F). May nights in Borupana witness a slight temperature decrease, averaging at a moderately hot 26.4°C (79.5°F).

Heat index

In May, the average heat index is calculated to be a very hot 39°C (102.2°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The average relative humidity in May is 81%.

Rainfall

In Borupana, in May, during 27.1 rainfall days, 279mm (10.98") of precipitation is typically accumulated. In Borupana, during the entire year, the rain falls for 272.3 days and collects up to 2039mm (80.28") of precipitation.

Daylight

In May, the average length of the day in Borupana is 12h and 26min.
On the first day of the month, sunrise is at 05:56 and sunset at 18:18. On the last day of May, sunrise is at 05:53 and sunset at 18:22 +0530.

Sunshine

In May, the average sunshine in Borupana is 8.7h.

UV index

May, June, August and October, with an average maximum UV index of 6, are months with the lowest UV index in Borupana. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 6 in May translates into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Boost your sun resistance with garments that are densely woven yet spacious.